I think what he meant about the $200 jackpot was to roll the number 10000 in the free roll every hour, I have been using Freebitco.in for almost 2 years now, but I also doesn't have the luck to roll that dream number 10000 in the free roll yet 
I have also been on this site for almost a year and a half and I have not been able to win a large sum there. I do not even believe that it's possible. I have no luck there